Finding the Fourth Proportional to 155,409.20, 232,679.76 and 84,076.76
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Solution
The fourth proportional to 155,409.20, 232,679.76 and 84,076.76 is: 125,880.32
Step by Step Solution
- Step 1: Write the proportion equation
155,409.20 : 232,679.76 = 84,076.76 : x - Step 2: Convert to fraction form
155,409.20/232,679.76 = 84,076.76/x - Step 3: Cross multiply
155,409.20x = 232,679.76 × 84,076.76 - Step 4: Simplify right side
155,409.20x = 19,562,960,338.38 - Step 5: Solve for x
x = 19,562,960,338.38/155,409.20 - Step 6: Final answer
x = 125,880.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.